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Lesson 1a: Nominal Wall Thickness

In this lesson you will learn about nominal wall thickness and how it relates to designing functional plastic parts. Although parts can have various wall thicknesses to accommodate fit and function, designers are generally tasked with minimizing thickness to lessen material consumption, achieve a faster cycle time, and reduce manufacturing costs. But parts with thin walls are more challenging to manufacture. Difficulties can arise in molding, ejection, post-molding handling, and structural integrity.  Let’s see how part designers can design a part with nominal wall thickness.

The first part of this lesson covers the importance of designing parts with nominal wall thickness, what factors play a role in determining nominal wall thickness, and how different materials and molding machine requirements impact nominal wall thickness.

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Nominal Wall Thickness Lesson Play Screen

Learn the basics of part design and how various design elements impact a molded part. Build your own Circle of Knowledge lesson by lesson. 

Goals of Part Design (Level 1): 

  • Learn the basics of part design and how various design elements impact a molded part
  • Learn how to optimize different design elements to achieve high quality molded parts
  • Analyze real-life simulations and learn to determine optimal outcomes

Section Description: 
As plastic part assemblies become more sophisticated, individual part designs becomes more complex. This complexity can create challenges for part designers, as well as for mold designers and process engineers. Early in the part design phase, designers must establish design parameters, a necessary step for molding high-quality parts that meet specifications and expectations.

Explanations, simulations, cause and effect analyses, and the uses of various design features are covered in this section. Understanding these design features is important because they influence the moldability, function, appearance, and quality of a part.

Recommended For: Entry Level Personnel, All Personnel

Length: Lessons are approximately 15-20 minutes long each

The Kruse Training platform delivers knowledge and expertise developed over two decades in the plastic injection molding industry. Now companies and individuals can access a state-of-the-art online training program, suited for all levels of knowledge.